The problem isn't that "allowlist" is preferred to "whitelist". The problem is that "whitelist" and "motherboard" are literally banned. Google is a private company so they can set whatever policies they want, but it's extremely condescending.

I'm generally on board with using culturally neutral terms, particularly since they're often more descriptive of the actual thing being described. I think there would be far less resistance if people didn't feel coerced.